OK
Back in 1854, the powers that be stopped everyone in Soho from using a public water fountain.
The locals were very upset about this.
'What's going on?!' they raged.
'You can't stop us drinking water! It's an affront to our liberties! We need water to drink! This is madness!!!' etc etc
Then it was shown that the water fountain was a source of cholera, and that 616 people had died from having drunk from it.
You can read more about it
here
So, just because you think the authorities are messing you about, doesn't mean to say they're being bad, even if you don't understand why it's happening.
The lockdown was put in place for reasons of public hygiene in order to prevent the spread of the virus. It's as simple as that, it really is.
As for the 'unknown long term side effects' then perhaps you may take solace in the fact that millions and millions of people have taken it, including doctors, epidemiologists & medical professionals and all those people who understand it way more than you and I ever will.
The efforts that go into the clinical trials these days are way, way better than those used in 1796 when the first smallpox vaccine was developed. The same vaccine that rid the world of smallpox. Vaccine technology is actually quite simple these days. The bods at Oxford developed it just a few weeks after getting their first sample of the virus. It's testing it that takes the time, and believe it or not this one has had a helluva lot of testing. How much more testing would you need for you to be happy to take it? There have been loads of vaccines in the past that have had nowhere near as much testing, yet have been used millions of times, without problem.